The two photorefractive centres in iron doped nearly stoichiometric lithium niobate crystals

doi:10.1088/1674-1056/17/3/044

Abstract

Abstract This paper investigates the photorefractive properties of iron doped lithium niobate with different [Li]/[Nb] ratios. The experimental results show two photorefractive centres for iron doped near-stoichiometric lithium niobate crystal. Besides Fe$^{2 + }$ and Fe$^{3 + }$ ions, small polarons and bipolarons are considered as another photoactive centre.

Keywords: lithium niobate crystal photorefractive effect stoichiometric

Received: 14 June 2007
Revised: 03 July 2007
Accepted manuscript online:

PACS:	42.65.Hw	(Phase conjugation; photorefractive and Kerr effects)
	42.70.Nq	(Other nonlinear optical materials; photorefractive and semiconductor materials)
	71.38.Mx	(Bipolarons)
	78.20.-e	(Optical properties of bulk materials and thin films)

Fund: Project supported by the research funding via Program for Changjiang Scholars of China and Innovative Research Team in University, China and the National Natural Science Foundation of China (Grant No 60578019) and Program for Changjiang Scholars and Innovative Research Team in University.

Cite this article:

Li Xiao-Chun(李晓春), Kong Yong-Fa(孔勇发), Wang Li-Zhong(王利忠) and Liu Hong-De(刘宏德) The two photorefractive centres in iron doped nearly stoichiometric lithium niobate crystals 2008 Chin. Phys. B 17 1014

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The two photorefractive centres in iron doped nearly stoichiometric lithium niobate crystals

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